Calculates the distribution of goods on different vehicles based on use values using linear optimization. The constraint is the maximum payload of the vehicles.
This work is provided unter the terms of the MIT licence. Please take a look at the LICENSE file for the full text.
- Multiple vehicles for transportation can be defined.
- In addition to the maximum payload the weight of the drivers can be defined.
- Provide data using a csv file.
- Payload of vehicles.
- Demand of the goods.
Due to the linear optimization problem, George Dantzig's simplex algorithm is chosen including a round down at the end of the process. This produces values which are found to be optimal.
These software versions are known to work:
- PHP 7.4
- Apache 2.4
- Install and configure PHP and the Webserver.
- Download the project folder by cloning it from GitHub.
- Make the project folder accessible for the web server.
This section describes, how to use the software.
First of all, please make sure that JavaScript is activated in your web browser.
The data is transferred to the software via two files. Information about the goods including weight, use value and demands has to be written in the data_hardware.csv file. Ones about the maximum payload and the weight of the drivers are stored in the data_van.php file. Every non-integer must be written with a point as a decimal separator.
The data_hardware.csv file has the following structure with one hardware name in each line:
<name>;<demand>;<weight of one unit in kg>;<use value>
[…]
The data_van.php file is an ordinary PHP file. While the maximum capacity is stored as a number, the weight values of the drivers are written to an array. The number of array elements also defines the number of vehicles used.
<?php
$capacity_max = <maximum payload in kg>;
$capacity_driver = array(<weight driver 1 in kg>[, <weight driver 2 in kg>[, …]]);
Examples of both files are stored in the application folder.
To check the provided information after changes were made you can press the Reload data button.
To calculate the result just press the Process data button.
If you have any questions, just drop a message at thorres [at] brothersofgrey [dot] net.